从复制资源目录中的图像 [英] Copy a image from res directory

问题描述

我已存储的一些图片我的应用程序的res文件夹。但用户可以将此图像下载使用下载选项的SD卡。我怎样才能在res文件夹的图像复制到SD卡。任何人都可以帮助我。

I have stored some images in res folder of my app. But the user can download this image to their sdcard using the download option. How can I copy the image in res folder to sdcard. Can anyone help me.

推荐答案

您可以做这样的事情，

    if (isSdPresent()) { // to check is sdcard mounted
            BitmapFactory.Options bmOptions;
            bmOptions = new BitmapFactory.Options();
            bmOptions.inSampleSize = 1;
            Bitmap bbicon = BitmapFactory.decodeResource(getResources(), R.drawable.icon);

            String extStorageDirectory = Environment.getExternalStorageDirectory()+ File.separator + "FolderName";
            File wallpaperDirectory = new File(extStorageDirectory);
            wallpaperDirectory.mkdirs();
            OutputStream outStream = null;
            File file = new File(wallpaperDirectory,"icon.png");
                     //to get resource name getResources().getResourceEntryName(R.drawable.icon);

        try {
            outStream = new FileOutputStream(file);
            bbicon.compress(Bitmap.CompressFormat.PNG, 100, outStream);
            outStream.flush();
            outStream.close();


            } catch (FileNotFoundException e) {
            e.printStackTrace();


            } catch (IOException e) {
            e.printStackTrace();

            }
            } else {

            }

检查SD卡

public boolean isSdPresent() {
        return android.os.Environment.getExternalStorageState().equals(
        android.os.Environment.MEDIA_MOUNTED);
        }

这篇关于从复制资源目录中的图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！